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3 years ago

The area of the triangle below is 2/5 square foot. What is the length, in feet, of the base of the triangle?

Mathematics

2 answers:

Nezavi [6.7K]3 years ago

5 0

C. Hope it helps :DD

erastovalidia [21]3 years ago

3 0

Answer:

Step-by-step explanation:

A= 1/2bh

2/5= 1/2(b)(6/5)

4/5= 6/5b

4=6b

4/6=b

b= 2/3

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Carissa also has a sink that is shaped like a half sphere. The sink has a volume of 4000/ 3 * π in 3. One day, her sink clogged.

givi [52]

Answer:

Part a) 119 cups

Part b) 30 cups

Step-by-step explanation:

Part a)

step 1

Find the volume of the conical cup with a diameter of 4 in. and a height of 8 in

The volume of the cone (cup) is equal to

$V=\frac{1}{3}\pi r^{2}h$

we have

$r=4/2=2\ in$ ----> the radius is half the diameter

$h=8\ in$

assume

$\pi =3.14$

substitute

$V=\frac{1}{3}(3.14)(2^{2})8=33.49\ in^3$

step 2

Find out how many cups of water must Carissa scoop out of the sink

Divide the volume of the sink by the volume of the cup

$\frac{4,000}{33.49}= 119\ cups$

Part b)

step 1

Find the volume of the conical cup with a diameter of 8 in. and a height of 8 in

The volume of the cone (cup) is equal to

$V=\frac{1}{3}\pi r^{2}h$

we have

$r=8/2=4\ in$ ----> the radius is half the diameter

$h=8\ in$

assume

$\pi =3.14$

substitute

$V=\frac{1}{3}(3.14)(4^{2})8=133.97\ in^3$

step 2

Find out how many cups of water must Carissa scoop out of the sink

Divide the volume of the sink by the volume of the cup

$\frac{4,000}{133.97}= 30\ cups$

7 0

3 years ago

Please help #12 10 points

eimsori [14]

1. add 40 to the 40 and 25
2. now you have
$\frac{5x {}^{2} }{5} = \frac{65}{5}$
3. then you have
${x}^{2} = 13$
4. then square root
${x}^{2} = 13$
5.then round answer to nearest tenth which is
$x = 3.61$

3 0

4 years ago

Five and fifty-six<br> thousandths in decimal form

Lerok [7]

Answer:

0.056

Step-by-step explanation:

:) hope this helps

3 0

3 years ago

Read 2 more answers

Help with question 3

lys-0071 [83]

What are the questions??

7 0

3 years ago

Find the measures of the angles of a triangle of the measure of one angle is three times the measure of a second angle and the t

Vinil7 [7]

Answer:

hii

x=30

Step-by-step explanation:

x+3x+5x-90=180

9x=270

x=30

5 0

3 years ago